MPS format exporting tool

Convert linear programming problem (MATLAB matrices) to MPS format

Build MPS matrix string that contains linear programming problem:

Minimizing (for x in R^n): f(x) = cost'*x, subject to
A*x <= b (LE)
Aeq*x = beq (EQ)
L <= x <= U (BD).

Only single rhs (b and beq) is supported.

The MPS file format was introduced for an IBM program, but has also been
accepted by most subsequent linear programming codes.

To learn about MPS format, please see:
http://lpsolve.sourceforge.net/5.5/mps-format.htm
http://www-fp.mcs.anl.gov/OTC/Guide/OptWeb/continuous/constrained/linearprog/mps.html